Cylinder for oil, spirit, or gas engines.



No. 731,265. PATENTED JUNE 16, 1903. H. AUSTIN.

CYLINDER FOR OIL, SPIRIT, 0R GAS ENGINES. APPLICATION rump APR. 23. 1902.

WrrNEssts \NVENIOR WM 4 -2- m'uwiq UNITED STATES Patented June 16, 1903,

PATENT Fries.

HERBERT -AUSTIN, OF ERDINGTON, NEAR BIRMINGHAM, ENGLAND.

SPECIFICATION forming part of Letters Patent No. 731,265, dated June 176, 1903.

Application filed April 23, 1902. Serial No. 104,412- (No model.) I

To all whom it'may concern.-

Be it known that I, HERBERT AUSTIN, engineer, a subject of the King of Great Britain, residing at Erdington, in the city of Birmingham, England, have invented certain new and useful Improvements in Cylinders of Internal- Combustion and other Engines, of which the following is a specification.

This invention relates to the means of securing the liner within the motor-cylinder of an oil, spirit, or gas engine, and has for its object to facilitate the removal of the liner and insure that while free expansion and contraction of the liner may take place in relation to the cylinder-castinga fluid-tight joint between the liner and cylinder-casting may be relied upon.

The above object is accomplished in the manner shown by the drawings herewith, of which- Figure l is a longitudinal section through the center of the motor-cylinder, including the breech or cover at the hinder end, and Fig. 2 is a view of the hinder end of the cylinder with the cover or breech removed. Fig. 3 is a section at line 00 in Fig. 2. This view shows the bolt connecting the parts.

A is the main casting of the cylinder, B the liner, and O the breech or hind cover, the forward end being open, as is usual. The liner is inserted from the hinder end of the cylinder instead of from the front end, as is usual. The hinder end of the liner is formed with a beveled face a, which is ground into a beveled face I) of the cylinder-casting. The breech or cover 0 has a beveled face 0, which is ground into a beveled face (Z of the liner, and the liner is securely held between the faces 0 and b by means of bolts 6, which pass through a flange f of the casting A and through a corresponding flange f of the cover 0. A fillet g is formed around the forward end of the liner, and is just a sliding fit within a fillet h, formed around the interior of the forward end of the casting A. A portion 2' of the liner, which extends forward from the fillet g, is a sliding fit within an inward rim or flange j of the casting A, and a space is left between the forward face of the fillet g and the rear or inner face of the rim or flange j, within which is placed suitable elastic packing, such as a ring of rubber. This elastic packing, while constituting a thoroughly fluid-tight joint between the liner and casting A, which will prevent leakage from the cooling-jacket D at the forward end of the cylinder, readily allows the liner B to expand and contract in relation to the casting A under the greater variations of temperature to which it isexposed as com 2. In an engine-cylinder, the combination with the outer cylinder-casting of the liner I rigidly fixed at one end, said liner having at a point a short distance from its free end an exteriorly-disposed annular shoulder, and the cylinder-casting having at its forward end an interiorly-disposed annular shoulder through which the free end of the liner plays and is a sliding fit, said shoulder on the cylinder having an internal diameter less than the external diameter of the shoulder on the liner, and packing between the adjacent opposed faces of said annular shoulders, substantially as set forth.

3. The combination with the outer cylindercasting, having a ground, beveled face 27 at its rear or outer end, and an internal flange j at its forward end which provides a shoulder, of the liner having at its rear or outer end a beveled face a which fits the face I) gas-tight, an external fillet g on its forward end, which provides a shoulder, and a forward extension t which has a sliding fit in the annular flangej, my name, this 8th day of April, 1902, in the packing between the opposed faces of the presence of two subscribing Witnesses. shoulders 0n the liner and the cylinder-casting', and means for rigidly securing together I HERBERT AUS1 5 the liner and casting at their outer ends, sub- WVitnesses:

stzmtially as and for the purposes set forth. ROBERT G. GROVES,

In Witness whereof I have hereunto signed THOMAS EDWIN CARLESS. 

